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rows or separated by transverse partitions of the valleys. Septa continuous over collines, septal margines
coarsely toothed .
Madrepora
Mer-ulina
ampliota
ampliata
sp. no".
Merulina ef ampliata (ELLIS and SOLANDER), 1786
(Plate H . Figs. 3- 5)
1786. ELLIS & SOLANDER. 157; pI. 41 / 1. 2.
1797. ES PER . 98; pI. 77/1 - 3.
IS34. EHRENBERG. 238.
1846. DANA, 272; pIs. 15/ 1, la- t, 2. 220 ; 16/ 1.
1925. MA ITHA!. 127 ; pis. 1/4-6; 13/ 1- 8 ; 59/l. 4 ; 67/ 3 (synonymy).
1952. CROSSLAND, 151.
1975. CHEVALIER. 20S ; pis. IS/ 2- 5; 19/1 ; 20/ 1--4; 41 / 11.
1976. PI LLAI & SCHEER. 64.
1980. VERON & PICHON. 216 ; figs. 358- 314; 764.
1980. HEAD. ISl , 463; pI. IV- 2a, b. 3.
EHRENBERG 's M. ampliata (1834 : 328) in the Museum in Berlin is from an unknown locality. KLUN·
ZINGER (1879) and MARENZELLER (1906) have not found this species. First MATTHAI (1928) repons
on one specimen from Red Sea but without giving details. CROSSLA D (1952) also mentions one specimen
from Red Sea (the same as MATTHAI ?), " in the orth a small scrap, probably semi-fossil". Therefore
CHEVALIER (1975) writes " Inconnue en Mer Rouge". But VERON & PICHON ( 1980) state again Red
Sea in their "Distribution" of the species.
HAED (1980) figures for the first time specimens of a Mernlina from the Red Sea. But he asseigns it
to a new species, because it differs from M. ampliata in having broader collines, wider valleys and, especially
in flat portions of the corallum, isolated calices.
The same characters we have found on specimens from Sanganeb Reef, which we received from Prof.
J . SCHROEDER , Port Sudan. The most conspicuous feature are the calices in explanate parts of the corallum,
which are separated from each other in the valleys by broad transverse partitions rising to level of collines.
Only at the periphery of the corallum the valleys are continuous.
MATTHAI (I928: 132) has described a similar specimen with single and some "distomodaeal" corallites
from Sumatra under his M. ampliata. We also group our specimens provisionally to M. ampliata.
Material:
Gulf of Aqaba: Jerus. SLR 1191 (Marsa el Muqeibla).
Central R. S.: P. Sud . Sa 56 , 63 (Sanganeb R.).
Dis t rib uti 0 n: Red Sea and Western Indian Ocean to Tonga and Samoa in the Pacific.
Remark s: HEAD (1980) wrote that a full account of his new species is in preparation. In the
meantime this acco unt is in press. He has named his species M. seheeri.
Family Mussidae ORTMANN , 1890
Synopsis of the genera of Mussidae from Red Sea:
1. Corallum solitary. Septa exsert, arched and swollen at the theca. Only the lower outer part of the
major septa has teeth ........ . ...... .. ... .. .... .. ........ . .. . .. . .... .. .. . . .. ()marina
2. Corallum tufted, ramose, phaceloid . Corallites 10 to 25 mm in diameter, monostomodaeal or in short
or longer valleys. Septa thickened .. .... .. . . . . ......... . .... . .... . . . .. . .... . . Lobophyllia
3. Corallum massive, plocoid . Corallites 10 mm and more. Mono- to tristomodaeal. . .. .. Aeanthastrea
4. Corallum branching, phaceloid or encrusting, cerioid. Corallites 4 to 13 mm. Septa typically mussid
in two or three cycles. . .... . ....... . ....... .. ... ... .. . ... . ............... Blastomussa
Genus Cjmarina BRUEGGEMANN , 1877
Type species : Cynarina savignyi BRUEGGEMANN, 1877.